Lines Matching refs:data

177 static inline u8 tmp51x_get_pga_shift(struct tmp51x_data *data)
179 	return 5 - ffs(data->pga_gain);
182 static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos,
198 		*val = sign_extend32(regval, 17 - tmp51x_get_pga_shift(data));
199 		*val = DIV_ROUND_CLOSEST(*val * 10000, data->shunt_uohms);
210 		*val = regval * data->pwr_lsb_uw;
214 		*val = sign_extend32(regval, 16) * data->curr_lsb_ua;
243 static int tmp51x_set_value(struct tmp51x_data *data, u8 reg, long val)
255 		val = DIV_ROUND_CLOSEST(val * data->shunt_uohms, 10000);
256 		max_val = U16_MAX >> tmp51x_get_pga_shift(data);
262 		max_val = (data->vbus_range_uvolt == TMP51X_VBUS_RANGE_32V) ?
269 		regval = clamp_val(DIV_ROUND_CLOSEST(val, data->pwr_lsb_uw), 0,
293 		return regmap_write(data->regmap, reg, regval);
295 		return regmap_update_bits(data->regmap, reg, mask, regval);
398 	struct tmp51x_data *data = dev_get_drvdata(dev);
410 	ret = regmap_read(data->regmap, reg, &regval);
414 	return tmp51x_get_value(data, reg, pos, regval, val);
433 	const struct tmp51x_data *data = _data;
437 		if (data->id == tmp512 && channel == 3)
463 		if (!data->shunt_uohms)
477 		if (!data->shunt_uohms)
530 static int tmp51x_calibrate(struct tmp51x_data *data)
532 	int vshunt_max = data->pga_gain * 40;
542 	if (data->shunt_uohms == 0)
543 		return regmap_write(data->regmap, TMP51X_SHUNT_CALIBRATION, 0);
546 					    data->shunt_uohms);
552 	data->curr_lsb_ua = DIV_ROUND_CLOSEST_ULL(max_curr_ma * 1000, 32767);
553 	data->pwr_lsb_uw = 20 * data->curr_lsb_ua;
555 	div = DIV_ROUND_CLOSEST_ULL(data->curr_lsb_ua * data->shunt_uohms,
558 	return regmap_write(data->regmap, TMP51X_SHUNT_CALIBRATION,
565 static int tmp51x_init(struct tmp51x_data *data)
568 	int ret = regmap_write(data->regmap, TMP51X_SHUNT_CONFIG,
569 			       data->shunt_config);
573 	ret = regmap_write(data->regmap, TMP51X_TEMP_CONFIG, data->temp_config);
578 	ret = regmap_update_bits(data->regmap, TMP51X_N_FACTOR_AND_HYST_1,
579 				 TMP51X_NFACTOR_MASK, data->nfactor[0] << 8);
583 	ret = regmap_write(data->regmap, TMP51X_N_FACTOR_2,
584 			   data->nfactor[1] << 8);
588 	if (data->id == tmp513) {
589 		ret = regmap_write(data->regmap, TMP513_N_FACTOR_3,
590 				   data->nfactor[2] << 8);
595 	ret = tmp51x_calibrate(data);
600 	return regmap_read(data->regmap, TMP51X_STATUS, &regval);
613 		.data = (void *)tmp512
617 		.data = (void *)tmp513
624 				    struct tmp51x_data *data)
626 	if (data->vbus_range_uvolt == TMP51X_VBUS_RANGE_32V) {
627 		data->shunt_config |= TMP51X_BUS_VOLTAGE_MASK;
628 	} else if (data->vbus_range_uvolt == TMP51X_VBUS_RANGE_16V) {
629 		data->shunt_config &= ~TMP51X_BUS_VOLTAGE_MASK;
632 			data->vbus_range_uvolt);
638 static int tmp51x_pga_gain_to_reg(struct device *dev, struct tmp51x_data *data)
640 	if (data->pga_gain == 8) {
641 		data->shunt_config |= CURRENT_SENSE_VOLTAGE_320_MASK;
642 	} else if (data->pga_gain == 4) {
643 		data->shunt_config |= CURRENT_SENSE_VOLTAGE_160_MASK;
644 	} else if (data->pga_gain == 2) {
645 		data->shunt_config |= CURRENT_SENSE_VOLTAGE_80_MASK;
646 	} else if (data->pga_gain == 1) {
647 		data->shunt_config |= CURRENT_SENSE_VOLTAGE_40_MASK;
649 		dev_err(dev, "ti,pga-gain is invalid: %u\n", data->pga_gain);
655 static int tmp51x_read_properties(struct device *dev, struct tmp51x_data *data)
662 	data->shunt_uohms = (ret >= 0) ? val : TMP51X_SHUNT_VALUE_DEFAULT;
665 	data->vbus_range_uvolt = (ret >= 0) ? val : TMP51X_VBUS_RANGE_DEFAULT;
666 	ret = tmp51x_vbus_range_to_reg(dev, data);
671 	data->pga_gain = (ret >= 0) ? val : TMP51X_PGA_DEFAULT;
672 	ret = tmp51x_pga_gain_to_reg(dev, data);
677 					    (data->id == tmp513) ? 3 : 2);
679 		memcpy(data->nfactor, nfactor, (data->id == tmp513) ? 3 : 2);
682 	if (data->shunt_uohms > data->pga_gain * 40 * 1000 * 1000) {
684 			data->shunt_uohms, data->pga_gain);
691 static void tmp51x_use_default(struct tmp51x_data *data)
693 	data->vbus_range_uvolt = TMP51X_VBUS_RANGE_DEFAULT;
694 	data->pga_gain = TMP51X_PGA_DEFAULT;
695 	data->shunt_uohms = TMP51X_SHUNT_VALUE_DEFAULT;
698 static int tmp51x_configure(struct device *dev, struct tmp51x_data *data)
700 	data->shunt_config = TMP51X_SHUNT_CONFIG_DEFAULT;
701 	data->temp_config = (data->id == tmp513) ?
705 		return tmp51x_read_properties(dev, data);
707 	tmp51x_use_default(data);
715 	struct tmp51x_data *data;
719 	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
720 	if (!data)
723 	data->id = (uintptr_t)i2c_get_match_data(client);
725 	ret = tmp51x_configure(dev, data);
731 	data->regmap = devm_regmap_init_i2c(client, &tmp51x_regmap_config);
732 	if (IS_ERR(data->regmap)) {
734 		return PTR_ERR(data->regmap);
737 	ret = tmp51x_init(data);
744 							 data,